Daily Practice · Higher

Daily Practice - Higher

3rd September 1993

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
4 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Capture Recapture2 marks
A capture-recapture estimate is made of the beetle population of a woodland. State one assumption the method relies on.
3
Bounds2 marks
A mass is 440 kg, correct to the nearest 10. Write down the lower bound.
4
Factorising Harder Quadratics3 marks
Factorise 2x^2 - 7x - 30.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 2, y = 10. Work out y when x = 10.

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